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Finding the Fourth Proportional to 8,473.68, 12,714.84 and 7,255.44

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Solution

The fourth proportional to 8,473.68, 12,714.84 and 7,255.44 is: 10,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.68 : 12,714.84 = 7,255.44 : x
  2. Step 2: Convert to fraction form
    8,473.68/12,714.84 = 7,255.44/x
  3. Step 3: Cross multiply
    8,473.68x = 12,714.84 × 7,255.44
  4. Step 4: Simplify right side
    8,473.68x = 92,251,758.73
  5. Step 5: Solve for x
    x = 92,251,758.73/8,473.68
  6. Step 6: Final answer
    x = 10,886.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.